CHEMICAL REACTION ENGINEERING QUIZ

For an autocatalytic reactor, the suitable reactor set up is

P.F. reactor followed by CSTR

CSTR followed by P.F. reactor

P.F. reactors in series

CSTR in series

TRUE ANSWER : ?
YOUR ANSWER : ?

The rate of reaction of a/an __________ reaction is not affected by temperature rise.

Zero order

Autocatalytic

Consecutive

Photochemical

TRUE ANSWER : ?
YOUR ANSWER : ?

A space velocity of 5 hr⁻¹ means that

After every 5 hours, reactor is being filled with the feed

A fixed conversion of a given batch of feed takes 5 hours

Cent per cent conversion can be achieved in at least 5 hours

Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour

TRUE ANSWER : ?
YOUR ANSWER : ?

The dispersion number of perfect mixed flow is

> 150

∞

< 2100

TRUE ANSWER : ?
YOUR ANSWER : ?

In case of a/an __________ chemical reaction, conversion increases with the rise in temperature.

Reversible exothermic

Reversible endothermic

Irreversible exothermic

Irreversible endothermic

TRUE ANSWER : ?
YOUR ANSWER : ?

In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure?

N + 3H₂ ⇋ 2NH₃

2SO₂ + O₂ ⇋ 2SO₃

N₂ + O₂ ⇋ 2NO

PCl3 + Cl₂ ⇋ PCl5

TRUE ANSWER : ?
YOUR ANSWER : ?

The role of a catalyst in a chemical reaction is to change the

Final products

Activation energy

Heat of reaction

Equilibrium constant

TRUE ANSWER : ?
YOUR ANSWER : ?

N' plug flow reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for __________ order reactions.

Second

Third

First

Any

TRUE ANSWER : ?
YOUR ANSWER : ?

For a mixed flow reactor operating at steady state, the rate of reaction is given by

- dCsub>A/dt

FA0/V . Xsub>A

FA0/V - dCsub>A/dt

FA0/V + dCsub>A/dt

TRUE ANSWER : ?
YOUR ANSWER : ?

Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

No change

Either A or B, depends on the type of reaction

Decrease

Increase

TRUE ANSWER : ?
YOUR ANSWER : ?